Shear bolt flat tail

Cold heading process is one of the new processes for pressure machining of less or no cutting
metal. It is a processing method that utilizes the plastic deformation of metal under the action of
external forces, and with the aid of molds, redistributes and transfers the volume of metal to form
the required parts or blanks. The cold heading process is most suitable for producing standard
fasteners such as bolts, screws, nuts, rivets, and pins.etc

Flat tail shear bolts are specialized fasteners designed to shear off at a predetermined torque or load, protecting machinery from damage by preventing overload. Here’s a detailed description:

Key Features:

1. Flat Tail Design

   • The bolt has a flat or slightly rounded end (as opposed to a pointed tip), making it suitable for applications where a smooth finish is needed after shearing.

   • The flat tail ensures the bolt sits flush or breaks cleanly without protruding.

   • Shear bolt flat tail

2. Shear Groove (Weak Point)

   • Contains a pre-machined notch or groove near the head or along the shank, which is the weakest point.

   • This ensures the bolt breaks predictably under excessive force, protecting sensitive components.

3. Material & Strength

   • Typically made from medium-carbon steel, stainless steel, or alloy steel for durability.

   • Heat-treated to precise hardness levels to ensure consistent shear strength.

4. Head Types

   • Common heads include hex, flange, or countersunk to fit different applications.

   • Some have a smooth, rounded head to minimize damage if the bolt shears.

5. Thread Type

   • Fully or partially threaded, depending on the application (e.g., securing shear plates in agricultural or industrial equipment).

Common Applications:

• Agricultural Equipment (e.g., mowers, tillers, balers)

• Industrial Machinery (e.g., conveyor systems, gearboxes)

• Automotive & Aerospace (safety-critical shear points)

• Construction Equipment (shear pins in augers, crushers)

Shear Bolt vs. Standard Bolt:

• Shear Bolts are engineered to fail at a specific torque, acting as a mechanical fuse.